McDonnell & Miller 126400 Boiler Make-Up Water Feeder

The McDonnell & Miller 126400 Boiler Make-Up Water Feeder delivers precise make-up water control for boilers, ensuring reliable operation and efficient water management. Designed for straightforward installation, this make-up water feeder uses a 3/4 inch threaded port connection and a rugged mounting flange. Its compact footprint—14.4375 inches long by 11.8125 inches tall—supports robust performance in a variety of boiler rooms.

Key specifications ensure dependable operation, with a temperature rating of 120°F on the inlet water and a pressure rating of 150 PSI (water) and 35 PSI (boiler). The unit handles water as its media and includes a durable mounting assembly that accommodates a six 7/16 inch bolt holes on a 5-3/4 inch bolt circle.

• Primary port connection: 3/4 inch threaded
• Mounting flange: six 7/16 inch bolt holes on a 5-3/4 inch bolt circle
• Overall dimensions: 14.4375" L × 11.8125" H
• Temperature rating: 120°F inlet water
• Pressure rating: 150 PSI (water); 35 PSI (boiler)
• Media: Water